Dairy & Eggs
Large Egg
Convert
Weight-only (no standard cup measure) →
Substitutes
3 real options →
Storage
Pantry / fridge / freezer →
Egg's hub page is one of the more structurally distinct on this site: it has no conversion page at all (eggs have no standard cup measure, since they're bought and used per-egg, not by volume), but it has real substitution and storage guidance, both genuinely useful in different common situations.
The substitution guidance (applesauce, ground flaxseed and water, or mashed banana) is specifically bounded to baking, and specifically to eggs' BINDING role — none of the three replicate an egg's ability to trap air when whipped, which is why this hub page and the substitutes page both flag structure-critical bakes like soufflés as poor candidates for any of the three.
The storage guidance is more reassuring than people often expect — eggs last 3-5 weeks in the fridge, genuinely longer than many perishable dairy products — with clear spoilage signs (cracked or slimy shell, off/sulfur smell, discolored white or yolk) worth checking specifically at the moment you crack one open, since a shell can look completely normal on the outside even if something's wrong inside.
A large egg is the US standard size most recipes are written and tested around, though eggs also come in medium, extra-large, and jumbo sizes — using a meaningfully different size than what a recipe specifies, particularly in a precise baking application, can shift the recipe's overall liquid and fat ratio more than most cooks realize.
Brown and white eggs come from different breeds of hen and differ only in shell color, not in nutrition, flavor, or quality — a genuine misconception that persists despite having no basis in how the eggs actually taste or perform in cooking.
An eggshell is porous enough that eggs left uncovered in a built-in door tray can pick up faint odors from an onion or strong cheese stored nearby over time — the original carton acts as a simple, effective barrier that a bare tray doesn't provide.
Frequently asked questions
Why doesn't this site have a conversion page for eggs?
Because eggs have no standard cup measure — they're bought, sold, and used per-egg in the overwhelming majority of recipes, so a cup-based conversion isn't a realistic use case the way it is for flour or sugar; the Weight of an Egg tool covers the less common per-egg weight breakdown instead.
Do egg substitutes work for anything besides baking?
Not really in the way they're covered on this site — the listed substitutes (applesauce, flaxseed, banana) are specifically evaluated for their binding role in baked goods, not for other egg uses like a fried egg or an omelet, which don't have a comparable substitute.
What's the single most important egg storage fact to know?
That eggs genuinely last 3-5 weeks refrigerated in their carton — longer than many people assume — but the real spoilage check happens at the moment you crack one open (off smell, discoloration), not just by looking at the shell or the date.
Does this hub page apply to duck eggs or other non-chicken eggs?
No — the weight breakdowns and storage guidance here are specific to standard chicken eggs; duck, quail, and other eggs have their own distinct weights and aren't covered by this site's bounded egg data.
Is there a reason liquid egg substitutes (like the carton kind) aren't covered here?
Those are a processed, pasteurized product with their own specific measurement conventions printed on the carton — different enough from whole shell eggs that they fall outside this page's scope.
Is there a more detailed breakdown of egg weight by size somewhere else on the site?
The Weight of an Egg tool goes further than this hub page does, breaking a Jumbo, Large, or Medium egg down by whole weight, white weight, and yolk weight individually for recipes that measure eggs that precisely.